4x + 5y =23 & 7x - 3y = 5
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Step-by-step explanation:
28x+35y= 161
28x-12y= 20
-------------------
47y= 141
y= 141/47= 3
4x+5.(3)= 23
4x= 23-15
4x= 8
x= 8/4= 2..
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